Using the deuterium isotope composition of permafrost meltwater to constrain thermokarst lake contributions to atmospheric CH4 during the last deglaciation

Journal of Geophysical Research: Biogeosciences

Volumn 117, Issue 1, 2012, Pages

  Brosius, L S ^a,b   Walter Anthony, K M ^a   Grosse, G ^b   Chanton, J P ^c   Farquharson, L M ^a,b   Overduin, P P ^d   Meyer, H ^d  

^a University of Alaska Fairbanks   (United States)

^b UNIVERSITY OF ALASKA FAIRBANKS   (United States)

^c FLORIDA STATE UNIVERSITY   (United States)

^d ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

DEGLACIATION; DEUTERIUM; HOLOCENE; ISOTOPIC COMPOSITION; MASS BALANCE; METHANE; PERMAFROST; THERMOKARST; YOUNGER DRYAS;

BERING ISLAND; KAMCHATKA; KOMANDORSKI ISLANDS; NORTH AMERICA; RUSSIAN FEDERATION; SIBERIA;

EID: 84857757852     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/2011JG001810     Document Type: Article

References (100)

1. Amante, C., and B. W. Eakins (2009), ETOPO1 1 arc-minute global relief model: Procedures, data sources and analysis, NOAA Tech. Memo. NESDIS NGDC-24, 19 pp., Natl. Geophys. Data Cent, Boulder, Colo. [Available at http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/docs/ETOPO1. pdf.]
2. Andreev, A. A., et al. (2009), Weichselian and Holocene palaeoenvironmental history of the Bol'shoy Lyakhovsky Island, New Siberian Archipelago, Arctic Siberia, Boreas, 38, 72-110, doi:10.1111/j.1502-3885.2008. 00039.x.
3. Arp, C. D., and B. M. Jones (2009), Geography of Alaska lake districts: Identification, description, and analysis of lake-rich regions of a diverse and dynamic state, U.S. Geol. Surv. Sci. Invest. Rep., 5215, 1-40.
4. Beget, J. E., D. M. Hopkins, and S. D. Charron (1996), The largest known maars on earth, Seward Peninsula, Northwest Alaska, Arctic, 49, 62-69.
5. Bigelow, N. H., et al. (2003), Climate change and Arctic ecosystems: 1. Vegetation changes north of 55°N between the last glacial maximum, mid-Holocene, and present, J. Geophys. Res., 108(D19), 8170, doi:10.1029/2002JD002558.
6. 2 reduction, Org. Geochem., 25, 255-262, doi:10.1016/S0146-6380(96)00129-5. (Pubitemid 27188548)
7. Bray, M. T., H. M. French, and Y. Shur (2006), Further cryostratigraphic observations in the CRREL permafrost tunnel, Fox, Alaska, Permafrost Periglacial Processes, 17, 233-243, doi:10.1002/ppp.558. (Pubitemid 44426044)
8. Brook, E. J., S. Harder, J. Severinghaus, E. J. Steig, and C. M. Sucher (2000), On the origin and timing of rapid changes in atmospheric methane during the last glacial period, Global Biogeochem. Cycles, 14, 559-572, doi:10.1029/1999GB001182.
9. Burn, C. R., and M. W. Smith (1990), Development of thermokarst lakes during the Holocene at sites near Mayo, Yukon territory, Permafrost Periglacial Processes, 1, 161-175, doi:10.1002/ppp.3430010207.
10. Chanton, J. P. (2005), The effect of gas transport mechanism on the isotope signature of methane in wetlands, Org. Geochem., 36, 753-768, doi:10.1016/j.orggeochem.2004.10.007. (Pubitemid 40561004)
11. Chanton, J. P., D. Fields, and M. E. Hines (2006), Controls on the hydrogen isotopic composition of biogenic methane from high latitude terrestrial wetlands, J. Geophys. Res., 111, G04004, doi:10.1029/2005JG000134. (Pubitemid 47491018)
12. 4 gradient between Greenland and Antarctica during the Holocene, J. Geophys. Res., 102(D13), 15,987-15,997, doi:10.1029/ 97JD01017.
13. Czudek, T., and J. Demek (1970), Thermokarst in Siberia and its influence on the development of lowland relief, Quat. Res., 1, 103-120, doi:10.1016/ 0033-5894(70)90013-X.
14. 4 gradient between Greenland and Antarctica during the Last Glacial and the transition to the Holocene, Geophys. Res. Lett., 27(7), 1005-1008, doi:10.1029/ 1999GL010873.
15. Daniels, L., G. Fulton, R. W. Spencer, and W. H. Orme-Johnson (1980), Origin of hydrogen in methane produced by Methanobacterium thermoautotrophicum, J. Bacteriol., 141, 694-698. (Pubitemid 10110861)
16. Dansgaard, W. (1964), Stable isotopes in precipitation, Tellus, 16, 436-468, doi:10.1111/j.2153-3490.1964.tb00181.x.
17. Dereviagin, A. Y., H. Meyer, A. B. Chizhov, H.-W. Hubberten, and E. F. Simonov (2002), New data on the isotopic composition and evolution of modern ice wedges in the Laptev Sea region, Polarforschung, 70, 27-35.
18. 4 emissions from different stages of thermokarst formation in Central Yakutia, East Siberia, Soil Sci. Plant Nutr., 55, 558-570, doi:10.1111/j.1747-0765.2009.00389.x.
19. Duddleston, K. N., M. A. Kinney, R. P. Keine, and M. E. Hines (2002), Anaerobic microbial biogeochemistry on a northern bog: Acetate as a dominant metabolic end product, Global Biogeochem. Cycles, 16(4), 1063, doi:10.1029/2001GB001402.
20. Edwards, M. E., et al. (2000), Pollen-based biomes for Beringia 18,000, 6000, and 0 14C yr BP, J. Biogeogr., 27, 521-554, doi:10.1046/j.1365-2699.2000. 00426.x. (Pubitemid 32139430)
21. Ehlers, J., and P. L. Gibbard (2003), Extent and chronology of glaciations, Quat. Sci. Rev., 22, 1561-1568, doi:10.1016/S0277-3791(03)00130-6. (Pubitemid 36914565)
22. Elias, S., and B. Crocker (2008), The Bering Land Bridge: A moisture barrier to the dispersal of steppe-tundra biota?, Quat. Sci. Rev., 27, 2473-2483, doi:10.1016/j.quascirev.2008.09.011.
23. Fischer, H., et al. (2008), Changing boreal methane sources and constant biomass burning during the last termination, Nature, 452, 864-867, doi:10.1038/nature06825. (Pubitemid 351550861)
24. Griffiths, M. L., et al. (2010), Younger Dryas-Holocene temperature and rainfall history of southern Indonesia from d18O in speleothem calcite and fluid inclusions, Earth Planet. Sci. Lett., 295, 30-36, doi:10.1016/ j.epsl.2010.03.018.
25. Grosse, G., M. C. Jones, B. Jones, and K. Walter Anthony (2011), Peat accumulation in drained thermokarst lake basins in continuous ice-rich permafrost, northern Seward Peninsula, Alaska, Abstract GC43C-0957, presented at 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec.
26. Grosse, G., B. M. Jones, and C. D. Arp (2012), Thermokarst lakes, drainage, and drained basins, in Treatise on Geomorphology 8, edited by J. F. Shroder Jr., Elsevier, Amsterdam, Netherlands, in press.
27. Hines,M. E., K. N. Duddleston, J. Rooney-Varga, D. Fields, and J. P. Chanton (2008), Uncoupling of acetate degradation from methane formation in Alaskan wetlands: Connections to vegetation distribution, Global Biogeochem. Cycles, 22, GB2017, doi:10.1029/2006GB002903.
28. Hinkel, K.M., W. R. Eisner, J. G. Bockheim, E. N. Frederick, K.M. Peterson, and X. Dai (2003), Spatial extent, age, and carbon stocks in drained thaw lake basins on the Barrow Peninsula, Alaska, Arct. Antarct. Alp. Res., 35, 291-300, doi:10.1657/1523-0430(2003)035[0291:SEAACS]2.0.CO;2. (Pubitemid 37269085)
29. Höfle, C., and C. Ping (1996), Properties and soil development of late-Pleistocene paleosols fromSeward Peninsula, northwest Alaska, Geoderma, 71, 219-243, doi:10.1016/0016-7061(96)00007-9. (Pubitemid 26287717)
30. Höfle, C., M. E. Edwards, D. M. Hopkins, and D. M. Mann (2000), The full-glacial environment of the northern Seward Peninsula, Alaska, reconstructed from the 21,500-year-old Kitluk paleosol, Quat. Res., 53, 143-153, doi:10.1006/qres.1999.2097. (Pubitemid 30239242)
31. Hornibrook, E. R. C., F. J. Longstaffe, and W. S. Fyfe (1997), Spatial distribution of microbial methane production pathways in temperate zone wetland soils: Stable carbon and hydrogen isotope evidence, Geochim. Cosmochim. Acta, 61, 745-753, doi:10.1016/S0016-7037(96)00368-7.
32. Hubberten, H. W., et al. (2004), The periglacial climate and environment in northern Eurasia during the Last Glaciation, Quat. Sci. Rev., 23, 1333-1357, doi:10.1016/j.quascirev.2003.12.012. (Pubitemid 38722337)
33. Jones, B. M., G. Grosse, C. D. Arp, M. C. Jones, K. M. Walter Anthony, and V. E. Romanovsky (2011), Modern thermokarst lake dynamics in the continuous permafrost zone, northern Seward Peninsula, Alaska, J. Geophys. Res., 116, G00M03, doi:10.1029/2011JG001666.
34. Jones, M. C., and Z. Yu (2010), High sensitivity of Alaskan peatlands to temperature seasonality during the Holocene thermal maximum, Proc. Natl. Acad. Sci. U. S. A., 107, 7347-7352, doi:10.1073/pnas.0911387107.
35. Jorgenson, M. T., and Y. Shur (2007), Evolution of lakes and basins in northern Alaska and discussion of the thaw lake cycle, J. Geophys. Res., 112, F02S17, doi:10.1029/2006JF000531. (Pubitemid 47351038)
36. Kanevskiy, M., Y. Shur, D. Fortier, M. T. Jorgenson, and E. Stephani (2011), Cryostratigraphy of late Pleistocene syngenetic permafrost (yedoma) in northern Alaska, Itkillik River exposure, Quat. Res., 75, 584-596, doi:10.1016/j.yqres.2010.12.003.
37. Kaplan, J. O., et al. (2003), Climate change and Arctic ecosystems: 2. Modeling, paleodata-model comparisons, and future projections, J. Geophys. Res., 108(D19), 8171, doi:10.1029/2002JD002559.
38. Kim, S.-J., T. J. Crowley, D. J. Erikson, B. Govindasamy, P. B. Diffey, and B. Y. Lee (2008), High-resolution climate simulation of the last glacial maximum, Clim. Dyn., 31, 1-16, doi:10.1007/s00382-007-0332-z.
39. 2 formation analyzed using hydrogen isotopes, FEBS Lett., 368, 203-206.
40. Kokorowski, H. D., P. M. Anderson, C. J. Mock, and A. V. Lozhkin (2008), A re-evaluation and spatial analysis of evidence for a Younger Dryas climatic reversal in Beringia, Quat. Sci. Rev., 27, 1710-1722, doi:10.1016/ j.quascirev.2008.06.010.
41. Kotler, E., and C. R. Burn (2000), Cryostratigraphy of the Klondike "muck" deposits west-central Yukon Territory, Can. J. Earth Sci., 37, 849-861, doi:10.1139/e00-013. (Pubitemid 30667324)
42. Kurita, N., N. Yoshida, G. Inoue, and E. A. Chayanova (2004), Modern isotope climatology of Russia: A first assessment, J. Geophys. Res., 109, D03102, doi:10.1029/2003JD003404.
43. Kuzmina, S., A. Sher, M. Edwards, J. Haile, E. Yan, A. Kotov, and E. Willerslev (2011), Late Pleistocene environment of the eastern West Beringia based on a section on the Main River, Chukotka, Quat. Sci. Rev., 30, 2091-2106, doi:10.1016/j.quascirev.2010.03.019.
44. Lachenbruch, A. H. (1962), Mechanics of thermal contraction cracks and ice-wedge polygons in permafrost, Spec. Pap. Geol. Soc. Am., 70, 1-67.
45. Lehner, B., and P. Döll (2004), Development and validation of a global database of lakes, reservoirs and wetlands, J. Hydrol. Amsterdam, 296, 1-22, doi:10.1016/j.jhydrol.2004.03.028. (Pubitemid 38946697)
46. Ling, F., and T. J. Zhang (2004), Modeling study of talik freeze-up and permafrost response under drained thaw lakes on the Alaskan Arctic Coastal Plain, J. Geophys. Res., 109, D01111, doi:10.1029/2003JD003886.
47. 2 variations, Science, 314, 285-288, doi:10.1126/science.1131722. (Pubitemid 44571970)
48. Mackay, J. R. (1983), Oxygen isotope variations in permafrost, Tuktoyaktuk Peninsula area, Northwest Territories, Current Research, Part B, Geol. Surv. Canada, 18, 67-74 (Paper 83-IB).
49. Martens, C. S., C. A. Kelley, J. P. Chanton, and W. J. Showers (1992), Carbon and hydrogen isotopic characterization of methane from wetlands and lakes of the Yukon-Kuskokwim Delta, Western Alaska, J. Geophys. Res., 97, 16,689-16,701.
50. 4 during the Younger Dryas termination, Clim. Past Discuss., 7, 3287-3324, doi:10.5194/cpd-7-3287-2011.
51. Metje, M., and P. Frenzel (2007), Methanogenesis and methanogenic pathways in a peat from subarctic permafrost, Environ. Microbiol., 9, 954-964, doi:10.1111/j.1462-2920.2006.01217.x. (Pubitemid 46397092)
52. Meyer, H., L. Schoenicke, U. Wand, H. W. Hubberten, and H. Friedrichsen (2000), Isotope studies of hydrogen and oxygen in ground ice -Experiences with the equilibration technique, Isotopes Environ. Health Stud., 36, 133-149, doi:10.1080/10256010008032939. (Pubitemid 32812353)
53. Meyer, H., A. Y. Dereviagin, C. Siegert, and H. W. Hubberten (2002a), Palaeoclimate studies on Bykovsky Peninsula, North Siberia-hydrogen and oxygen isotopes in ground ice, Polarforschung, 70, 37-51.
54. Meyer, H., A. Dereviagin, C. Siegert, L. Schirrmeister, and H. W. Hubberten (2002b), Palaeoclimate reconstruction of Big Lyakhavsky Island, North Siberia-hydrogen and oxygen isotopes in ice wedges, Permafrost Periglacial Processes, 13, 91-105, doi:10.1002/ppp.416. (Pubitemid 34744447)
55. Meyer, H., K. Yoshikawa, L. Schirrmeister, and A. Andreev (2008), The Vault Creek Tunnel (Fairbanks Region, Alaska): A Late Quaternary palaeoenvironmental permafrost record, in Proceedings of the Ninth International Conference on Permafrost, University of Alaska, Fairbanks, Alaska, edited by D. L. Kane and K. M. Hinkel, pp. 1191-1196, Inst. of Northern Eng., Fairbanks, Alaska.
56. Meyer, H., L. Schirrmeister, K. Yoshikawa, T. Opel, S. Wetterich, H. W. Hubberten, and J. Brown (2010), Permafrost evidence for severe winter cooling during the Younger Dryas in northern Alaska, Geophys. Res. Lett., 37, L03501, doi:10.1029/2009GL041013.
57. Michel, F. A. (1982), Isotope investigations of permafrost waters in northern Canada, PhD thesis, Dept. of Earth Sci., Univ. of Waterloo, Waterloo, Ontario, Canada.
58. Michel, F. A. (1990), Isotopic composition of ice-wedge ice in northwestern Canada, Nordicana, 54, 1-9.
59. Michel, F. A. (2011), Isotope characterisation of ground ice in northern Canada, Permafrost Periglacial Processes, 22, 3-12, doi:10.1002/ ppp.721.
60. Morgenstern, A., G. Grosse, F. Günther, I. Fedorova, and L. Schirrmeister (2011), Spatial analyses of thermokarst lakes and basins in Yedoma landscapes of the Lena Delta, The Cryosphere, 5(4), 849-867, doi:10.5194/ tc-5-849-2011.
61. Murton, J. B., M. D. Bateman, C. A. Baker, R. Knox, and C. A. Whiteman (2003), The Devensian periglacial record on Thanet, Kent, UK, Permafrost Periglacial Processes, 14, 217-246, doi:10.1002/ppp.442. (Pubitemid 37196238)
62. Murton, J. B., R. I. Waller, J. K. Hart, C. A. Whiteman, W. H. Pollard, and I. D. Clark (2004), Stratigraphy and glaciotectonic structures of permafrost deformed beneath the northwest margin of the Laurentide ice sheet, Tuktoyaktuk Coastlands, Canada, J. Glaciol., 50, 399-412, doi:10.3189/ 172756504781829927. (Pubitemid 40801360)
63. Nakagawa, F., N. Yoshida, Y. Nojiri, and V. N. Makarov (2002), Production of methane from alasses in eastern Siberia: Implications from its 14C and stable isotope compositions, Global Biogeochem. Cycles, 16(3), 1041, doi:10.1029/2000GB001384.
64. Nikolayev, V. I., and D. V. Mikhalev (1995), An oxygen-isotope paleothermometer from ice in Siberian permafrost, Quat. Res., 43, 14-21, doi:10.1006/qres.1995.1002.
65. Opel, T., A. Y. Dereviagin, H. Meyer, L. Schirrmeister, and S. Wetterich (2011), Palaioclimatic information from stable water isotopes of Holocene ice wedges on the Dmitrii Laptev Strait, Northeast Siberia, Russia, Permafrost Periglacial Processes, 22, 84-100, doi:10.1002/ppp.667.
66. Parsekian, A. D., B. M. Jones, M. Jones, G. Grosse, K. M. Walter Anthony, and L. Slater (2011), Expansion rate and geometry of floating vegetation mats on the margins of thermokarst lakes, northern Seward Peninsula, Alaska, USA, Earth Surf. Process. Landf., 36(14), 1889-1897, doi:10.1002/esp.2210.
67. Peltier, W. R., and F. G. Fairbanks (2006), Global glacial ice volume and Last Glacial Maximum duration from an extended Barbados sea level record, Quat. Sci. Rev., 25, 3322-3337, doi:10.1016/j.quascirev.2006.04.010. (Pubitemid 46209381)
68. 4 sources, Science, 324, 506-508, doi:10.1126/science.1168909.
69. Péwé, T. L. (1975), Quaternary geology of Alaska, U.S. Geol. Surv. Prof. Pap., 835, 1-145.
70. Popp, S., B. Diekmann, H. Meyer, C. Siegert, I. Syromyatnikov, and H. W. Hubberten (2006), Palaeoclimate signals as inferred from stable-isotope composition of ground ice in the Verkhoyansk Foreland, Central Yakutia, Permafrost Periglacial Processes, 17, 119-132, doi:10.1002/ppp.556. (Pubitemid 43984899)
71. Riordan, B., D. Verbyla, and A. D. McGuire (2006), Shrinking ponds in subarctic Alaska based on 1950-2002 remotely sensed images, J. Geophys. Res., 111, G04002, doi:10.1029/2005JG000150. (Pubitemid 47491016)
72. Rooney-Varga, J. N., M. W. Giewat, K. N. Duddleston, J. P. Chanton, and M. E. Hines (2007), Links between archaeal community structure, vegetation type and methanogenic pathway in Alaskan peatlands, FEMS Microbiol. Ecol., 60, 240-251, doi:10.1111/j.1574-6941.2007.00278.x. (Pubitemid 46597308)
73. Sannel, A. B. K., and P. Kuhry (2011), Warming-induced destabilization of peat plateau/thermokarst lake complexes, J. Geophys. Res., 116, G03035, doi:10.1029/2010JG001635.
74. Schaefer, H., and M. J. Whiticar (2008), Potential glacial-interglacial changes in stable carbon isotope ratios of methane sources and sink fractionation, Global Biogeochem. Cycles, 22, GB1001, doi:10.1029/ 2006GB002889.
75. 4 across the Younger Dryas-Preboreal transition, Science, 313, 1109-1112, doi:10.1126/science.1126562. (Pubitemid 44300234)
76. Schirrmeister, L., C. Siegert, T. Kuznetsova, S. Kuzmina, A. Andreev, F. Kienast, H. Meyer, and A. Bobrov (2002), Paleoenvironmental and paleoclimatic records from permafrost deposits in the Arctic region of Northern Siberia, Quat. Int., 89, 97-118, doi:10.1016/S1040-6182(01) 00083-0. (Pubitemid 34290488)
77. Schirrmeister, L., G. Grosse, S. Wetterich, P. P. Overduin, J. Strauß, E. A. G. Schuur, and H.-W. Hubberten (2011a), Fossil organic matter characteristics in permafrost deposits of the Northeast Siberian Arctic, J. Geophys. Res., 116, G00M02, doi:10.1029/2011JG001647.
78. Schirrmeister, L., V. Kunitsky, G. Grosse, S. Wetterich, H. Meyer, G. Schwamborn, A. Derevyagin, and C. Siegert (2011b), Sedimentary characteristics and origin of the Late Pleistocene Ice Complex on northeast Siberian Arctic coastal lowlands and islands -A review, Quat. Int., 241, 3-25, doi:10.1016/j.quaint.2010.04.004.
79. Schirrmeister, L., D. Froese, V. Tumskoy, G. Grosse, and S. Wetterich (2012), Yedoma: Late Pleistocene ice-rich syngenetic permafrost of Beringia, in Encyclopedia of Quaternary Science, edited by S. A. Elias, Elsevier, Amsterdam, Netherlands, in press.
80. 2-forming N5, N10-methylenetetrahydromethanopterin dehydrogenase from Methanobacterium thermoautotrophicu catalyzes a stereoselective hydride transfer as determined by 2-dimensional NMR-spectroscopy, Biochemistry, 33, 3986-3993, doi:10.1021/bi00179a027.
81. Schwamborn, G., H. Meyer, F. Grigory, L. Schuirrmeister, and H.-W. Hubberten (2006), Ground ice and slope sediments archiving late Quaternary paleoenvironment and palaeoclimate signals at the margins of El'gygytgyn impact crater, NE Siberia, Quat. Res., 66, 259-272, doi:10.1016/j.yqres.2006.06.007. (Pubitemid 44542488)
82. 2 formation using hydrogen isotopes, Eur. J. Biochem., 212, 255-261, doi:10.1111/j.1432-1033.1993.tb17657.x. (Pubitemid 23064624)
83. Severinghaus, J. P., and E. J. Brook (1999), Abrupt climate change at the end of the last glacial period inferred from trapped air in polar ice, Science, 286, 930-934, doi:10.1126/science.286.5441.930.
84. Severinghaus, J. P., T. Sowers, E. J. Brook, R. B. Alley, and M. L. Bender (1998), Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice, Nature, 391, 141-146, doi:10.1038/34346. (Pubitemid 28092465)
85. Smith, L. C., Y. Sheng, and G. M. MacDonald (2007), A first pan-Arctic assessment of the influence of glaciations, permafrost, topography and peatlands on northern hemisphere lake distribution, Permafrost Periglacial Processes, 18, 201-208, doi:10.1002/ppp.581. (Pubitemid 46957985)
86. 4 isotopic record suggests marine clathrates are stable, Science, 311, 838-840, doi:10.1126/ science.1121235. (Pubitemid 43228845)
87. Sowers, T. (2010), Atmospheric methane isotope records covering the Holocene period, Quat. Sci. Rev., 29, 213-221, doi:10.1016/j.quascirev. 2009.05.023.
88. Väikmae, R. (1990), Oxygen isotopes in permafrost and ground ice: A new tool for paleoclimatic investigations, in Proceedings of the Fifth Working Meeting, Isotopes in Nature, edited by U. Wand and G. Strauch, pp. 543-553, Cent. Inst. of Isotope and Radiat. Res., Leipzig, Germany.
89. Valentine, D. L., A. Chidthaisong, A. Rice, W. S. Reeburgh, and S. Tyler (2004), Carbon and hydrogen isotope fractionation by moderately thermophylic methanogens, Geochim. Cosmochim. Acta, 68, 1571-1590, doi:10.1016/j.gca.2003.10. 012. (Pubitemid 38464301)
90. Van Breuklen, M. R., H. B. Vonhof, J. C. Hollstrom, W. C. G. Wester, and D. Kroon (2008), Fossil dripwater in stalagmites reveals Holocene temperature and rainfall variation in Amazonia, Earth Planet. Sci. Lett., 275, 54-60, doi:10.1016/j.epsl.2008.07.060.
91. Vasil'chuk, Y. K., and A. C. Vasil'chuk (1997), Radiocarbon dating and oxygen isotope variations in Late Pleistocene syngenetic icewedges, northern Siberia, Permafrost Periglacial Processes, 8, 335-345, doi:10.1002/(SICI)1099- 1530(199709)8:3<335::AID-PPP259>3.0.CO;2-V. (Pubitemid 127634657)
92. Velichko, A. A., T.D.Morozova,V. P.Nechaev, N. W. Rutter,K. G. Dlusskii, E. C. Little, N. R. Catto, V. V. Semenov, and M. E. Evans (2006), Loess/ paleosol/cryogenic formation and structure near the northern limit of loess deposition, East European Plain, Russia, Quat. Int., 152-153, 14-30, doi:10.1016/j.quaint.2005.12.003. (Pubitemid 43977162)
93. Waldron, S., J. M. Lansdown, E. M. Scott, A. E. Fallick, and A. J. Hall (1999), The global influence of H isotopic composition of water on that of bacteriogenic methane from shallow freshwater environments, Geochim. Cosmochim. Acta, 63, 2237-2245, doi:10.1016/S0016-7037(99)00192-1. (Pubitemid 30014918)
94. Walter, K. M., S. A. Zimov, J. P. Chanton, D. Verbyla, and F. S. Chapin III (2006), Methane bubbling from Siberian thaw lakes as a positive feedback to climate warming, Nature, 443, 71-75, doi:10.1038/nature05040. (Pubitemid 44344049)
95. 4 during the last deglaciation, Science, 318, 633-636, doi:10.1126/science.1142924. (Pubitemid 350014834)
96. Walter, K. M., J. P. Chanton, F. S. Chapin III, A. G. Schuur, and S. A. Zimov (2008), Methane production and bubble emissions from arctic lakes: Isotopic implications for source pathways and ages, J. Geophys. Res., 113, G00A08, doi:10.1029/2007JG000569.
97. Wetterich, S., N. Rudaya, V. Tumskoy, A. A. Andreev, T. Opel, L. Schirrmeister, and H. Meyer (2011), Last Glacial Maximum records in permafrost of the East Siberian Arctic, Quat. Sci. Rev., 30, 3139-3151, doi:10.1016/j.quascirev.2011.07.020.
98. Whiticar, M. J. (1999), Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane, Chem. Geol., 161, 291-314, doi:10.1016/S0009-2541(99)00092-3. (Pubitemid 30130536)
99. Whiticar, M., and H. Schaefer (2007), Contrasting past global tropospheric methane budgets with carbon and hydrogen isotope ratios in ice, Philos. Trans. R. Soc. A., 365, 1793-1828, doi:10.1098/rsta.2007.2048.
100. 2 reduction vs. acetate fermentation-Isotope evidence, Geochim. Cosmochim. Acta, 50, 693-709, doi:10.1016/0016-7037(86)90346-7.